过滤器中过滤

Question

我有这个输入：

[
  {
    "building": 222,
    "default": {
      "price": 0.22,
      "perHour": null
    },
    "appPricing": [
      {
        "pricing": {
          "price": 1.25,
          "perHour": null
        },
        "schedules": [
          {
            "daysOfWeek": [
              "FRIDAY",
              "MONDAY"
            ],
            "endTime": "21:59:00",
            "startTime": "08:00:00"
          },
          {
            "daysOfWeek": [
              "TUESDAY",
              "WEDNESDAY",
              "THURSDAY"
            ],
            "endTime": "19:59:00",
            "startTime": "11:00:00"
          }
        ]
      },
      {
        "pricing": {
          "price": 0.34,
          "perHour": null
        },
        "schedules": [
          {
            "daysOfWeek": [
              "MONDAY",
              "FRIDAY"
            ],
            "endTime": "23:59:00",
            "startTime": "22:00:00"
          },
          {
            "daysOfWeek": [
              "TUESDAY",
              "WEDNESDAY",
              "THURSDAY"
            ],
            "endTime": "23:59:00",
            "startTime": "20:00:00"
          }
        ]
      },
      {
        "pricing": {
          "price": 0.8,
          "perHour": null
        },
        "schedules": [
          {
            "daysOfWeek": [
              "MONDAY",
              "FRIDAY"
            ],
            "endTime": "07:59:00",
            "startTime": "00:00:00"
          },
          {
            "daysOfWeek": [
              "TUESDAY",
              "WEDNESDAY",
              "THURSDAY"
            ],
            "endTime": "10:59:00",
            "startTime": "00:00:00"
          }
        ]
      }
    ]
  }
]

我想在一周中的特定日期、特定结束时间和开始时间之后进行过滤。 这是一个例子：
星期几：星期四
结束时间：18:59:00
开始时间：11:00:00

这是输出：

{ 
  "price": 0.22, 
  "perMinute": null, 
  "perSession": null
} 

Answer 1

我假设您正在尝试根据时间表过滤定价，并在找不到定价的情况下返回默认定价。关键是内部过滤器返回布尔条件，我使用

isEmpty

和

!

运算符来实现相同的效果。

但是，我发现输出与输入存在差异。例如，输出中的 perMinute 和 perSession 字段。因此，请使用以下脚本作为起点，并根据您的要求扩展/修改脚本。

希望这有帮助！

%dw 2.0
output application/json
var inp = {
    day: "THURSDAY",
    endTime: "16:59:00",
    startTime: "11:00:00"
}

fun matchSchedules (schedules) = 
    !isEmpty (schedules filter (($.daysOfWeek contains inp.day)
                    and $.endTime == inp.endTime
                    and $.startTime == inp.startTime))
---
((payload[0].appPricing filter ((price) -> matchSchedules(price.schedules)))[0].pricing) default payload[0]."default"